{
  "manageEntity": {
    "action": "Save",
    "entityId": "1936085185",
    "entityType": "Track",
    "nonce": "0x32fb76c9216cc1ac89b90ba5bd107d28c747df61ea2a7fd6b9938523df9b606f",
    "signature": "0x20ee8b9bbfdb0097a9c0f76d7996435254d87dc1bca87c299ab20b485ef5081a59563bf0e0cb9025d18811c34c219eeac5d782e2f06187f419105423cf19c3d61b",
    "signer": "0x26Feee0AaDc0e2d8f7aBEd5cdb0bCD7D325F618d",
    "userId": "354535"
  }
}